Archives

Categories

Meta

Information

Welcome to my CompTIA A+ 220-901 & 220-902 study page! The A+ certification is designed to test your skills with PCs, laptops, mobile devices, operating systems, and basic networking and security concepts. It is the most well-known certification in the computer industry and many companies require/recommend that you have it. This study page acts as […]

Welcome to my SY0-501 Study Page! The CompTIA Security+ SY0-501 certification shows employers that you have a broad understanding of computer security concepts. The certification is well-known in the IT industry and it’s a great resume builder. Download the CompTIA Security+ Objectives here. That’s just a small sample of the questions and answers in the […]

Today I am installing a Synology DS218+ network attached storage (NAS) box and configuring it as a 4 TB RAID 1 array. Click to watch the video—28 minutes, for beginners. Scroll down for more information. The Synology DS218+ is a 2-bay NAS device that is designed for home use or very small office use. It […]

Examine the figure (click to enlarge). Questions: 1. What did I encrypt? 2. How many iterations (or rounds) were performed? (see answer below and video response) Answer I created a password for the GRUB bootloader in Linux and encrypted it using PBKDF2. This utilized the SHA512 cryptographic hash which ran for 10,000 rounds (iterations). The […]